Seiko Cal. 4537 - 943

Released in 1979, the Cal. 4537 with design code 943 was part of Seiko's domestic market collection. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-01646db30bff]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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